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      <a id="nrpn"></a>
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      <a id="IndexNrpn" class="indexterm"></a>
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        <h2>
          <span class="refentrytitle">nrpn</span>
        </h2>
        <p>nrpn — 
      Sends a Non-Registered Parameter Number to the MIDI OUT port.
          </p>
      </div>
      <div class="refsect1">
        <a id="idp127805840"></a>
        <h2>Description</h2>
        <p>
      Sends a NPRN (Non-Registered Parameter Number) message to the MIDI OUT port each time one of the input arguments changes.
    </p>
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      <div class="refsect1">
        <a id="idp127847152"></a>
        <h2>Syntax</h2>
        <pre class="synopsis"><span class="command"><strong>nrpn</strong></span> kchan, kparmnum, kparmvalue</pre>
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      <div class="refsect1">
        <a id="idp127849184"></a>
        <h2>Performance</h2>
        <p>
      <span class="emphasis"><em>kchan</em></span> -- MIDI channel (1-16)
    </p>
        <p>
      <span class="emphasis"><em>kparmnum</em></span> -- number of NRPN parameter
    </p>
        <p>
      <span class="emphasis"><em>kparmvalue</em></span> -- value of NRPN parameter
    </p>
        <p>
      This opcode sends new message when the MIDI translated value of one of the input arguments changes. It operates at k-rate. Useful with the MIDI instruments that recognize NRPNs (for example with the newest sound-cards with internal MIDI synthesizer such as SB AWE32, AWE64, GUS etc. in which each patch parameter can be changed during the performance via NRPN)
    </p>
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      <div class="refsect1">
        <a id="idp127853296"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the nrpn opcode. It uses the file <a class="ulink" href="examples/nrpn.csd" target="_top"><em class="citetitle">nrpn.csd</em></a>.
      </p>
        <div class="example">
          <a id="idp127855072"></a>
          <p class="title">
            <strong>Example 547. Example of the nrpn opcode.</strong>
          </p>
          <div class="example-contents">
            <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
            <p>This example generates notes for every note received on the MIDI input. It generates MIDI notes on csound's MIDI output, so be sure to connect something.</p>
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
 
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac  -Q1   <span class="comment">;;;realtime audio out with MIDI out</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span>  <span class="op">=</span> 1

<span class="oblock">instr</span> 1	<span class="comment">; change attack time of external synth</span>

<span class="opc">initc7</span> 1, 6, 0		<span class="comment">; set controller 6 to 0</span>
<span class="opc">nrpn</span> 1, 99, 1		<span class="comment">; set MSB</span>
<span class="opc">nrpn</span> 1, 98, 99		<span class="comment">; set LSB</span>
katt <span class="opc">ctrl7</span> 1, 6, 1, 127	<span class="comment">; DataEntMSB</span>
idur <span class="op">=</span> 2
<span class="opc">noteondur2</span> 1, 60, 100, idur <span class="comment">; play note on synth</span>

<span class="oblock">endin</span>
<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>

<span class="stamnt">i</span> 1 0 3
<span class="stamnt">e</span>
<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
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        <p><br class="example-break" />
    </p>
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      <div class="refsect1">
        <a id="idp127859920"></a>
        <h2>Credits</h2>
        <p>
      </p>
        <table border="0" summary="Simple list" class="simplelist">
          <tr>
            <td>Author: Gabriel Maldonado</td>
          </tr>
          <tr>
            <td>Italy</td>
          </tr>
          <tr>
            <td>1998</td>
          </tr>
        </table>
        <p>
    </p>
        <p>New in Csound version 3.492</p>
        <p>Thanks goes to Rasmus Ekman for pointing out the correct MIDI channel and controller number ranges.</p>
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